Beet campaign

The beet's field is being harvested. Beets are transported to 3 plants, 3 trucks. The first car returns to the field 3 times an hour, the second car after 30 minutes, and the third car 5 times an hour. All cars left at 8 in the morning. How many cars do we count in the field between 9.30 and 11.20?

Correct answer:

n =  19

Step-by-step explanation:

a:9.40,10.00,10.20,10.40,11.00,11.20 b:9.30,10.00,10.30,11.00 c:9.34,9.48,10.00,10.12,10.24,10.34,10.48,11.00,11.12  n=6+4+9=19



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